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Awareness-Level Lesson 4 Presentation

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Awareness-Level Lesson 4 Presentation Hazardous Materials for First Responders, 3rd Ed. – PowerPoint PPT presentation

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Title: Awareness-Level Lesson 4 Presentation


1
Awareness-Level Lesson 4 Presentation
  • Hazardous Materials for First Responders, 3rd
    Ed.

2
Typical Components of PPE
  • Respiratory equipment
  • Protective clothing
  • Structural fire-fighting protective clothing
  • High-temperature protective clothing
  • Chemical protective clothing

3
What Appropriate PPE Protects
  • Skin
  • Eyes
  • Face
  • Hands
  • Feet
  • Body
  • Head
  • Respiratory system

(1 of 2)
4
What Appropriate PPE Protects

Protective clothing and respiratory protection
prevent exposure to hazardous chemicals by
protecting the routes of entry.
(2 of 2)
5
PPE and Hazardous Materials
  • Structural fire-fighting and high-temperature
    protective clothing Offer limited protection
    against chemical hazards
  • Chemical-protective clothing Offers protection
    against hazardous materials
  • Requires training above the first responder
    Awareness Level

6
Requirements of PPE
  • NFPA standards state requirements for personal
    protective equipment
  • Design
  • Certification
  • Testing

7
Structural Fire-Fighting Protective Clothing
  • Provides protection from
  • Heat
  • Moisture
  • Ordinary hazards associated with structural fire
    fighting

8
Components of Structural Fire-Fighting Protective
Clothing
  • Helmet
  • Coat
  • Pants
  • Boots
  • Gloves
  • Personal alert safety system (PASS) device
  • Hood

9
Limitations of Structural Fire-Fighting Clothing
  • Limited protection against hazardous materials
  • Neither corrosive-resistant nor vapor-tight
  • Gaps occur in clothing
  • Chemicals can be absorbed into the equipment
  • Rubber or neoprene in boots, gloves, and SCBA
    facepieces can become permeated by chemicals and
    rendered unsafe for use

10
Structural Fire-Fighting Protective Clothing at
Haz Mat Incidents
  • Structural fire-fighting protective clothing is
    commonly used at haz mat incidents when the
    following conditions are met
  • Contact with splashes of extremely hazardous
    materials is unlikely
  • Total atmospheric concentrations do not contain
    high levels of chemicals that are toxic by way of
    skin contact
  • There is a chance of fire or there is a fire

11
Purpose of Chemical-Protective Clothing and
Equipment
  • To shield or isolate individuals from the
    chemical, physical, and biological hazards that
    may be encountered during haz mat operations

12
Types of CPC
  • Liquid-splash protective clothing
  • Vapor-protective clothing

13
CPC Combinations
  • Single or multipiece garment
  • Encapsulating
  • Nonencapsulating

14
Selection of CPC
  • Depends on specific chemical and on specific
    tasks
  • Selection considerations
  • Most CPC is impermeable to moisture
  • Garments permeation, degradation, and
    penetration abilities
  • Service life

15
CPC Permeation
  • Permeation Occurs when a chemical passes
    through the CPC fabric on a molecular level

Chemical spill
16
CPC Degradation
  • Degradation Occurs when the characteristics of
    the material in use are altered through contact
    with chemical substances

(1 of 2)
17
CPC Degradation
An acid eating away the outer layers of
structural fire-fighting protective clothing is
an example of chemical degradation.
(2 of 2)
18
CPC Penetration
  • Penetration Occurs when there is an opening or
    a puncture in the protective material

(1 of 2)
19
CPC Penetration
Chemicals can penetrate PPE through gaps, tears,
punctures, or other openings.
(2 of 2)
20
CPC Service Life
  • Reusable
  • Limited use
  • Disposable

21
CPC Written Management Program
  • All emergency responders and organizations who
    routinely select and use CPC should establish a
    written CPC management program.

22
Positive-Pressure SCBA Components
  • Facepiece
  • Pressure regulator
  • Compressed air cylinder
  • Harness assembly
  • End-of-service-time indicators

23
Advantages of Positive-Pressure SCBA
  • Maintains air pressure inside the facepiece
    slightly higher than normal atmospheric pressure
    outside
  • Independence
  • Maneuverability

24
Disadvantages of Positive-Pressure SCBA
  • Heavy weight of the units
  • Limited air supply duration
  • Change in profile that may hinder mobility
  • Limited vision caused by facepiece fogging
  • Limited communications if not equipped with a
    microphone or speaking diaphragm

25
Level D Ensembles
  • Used for nuisance contamination and used only
    when no atmospheric hazards exist
  • Provide no respiratory protection and minimal
    skin protection
  • May not be worn in the hot zone

26
Level D Ensemble Components
  • Consist of typical work uniforms, street
    clothing, or coveralls
  • Includes items such as
  • Gloves
  • Safety glasses
  • Boots
  • Hardhats

27
Level D Ensemble Use
  • Atmosphere contains no hazard
  • Work functions preclude splashes, immersion, or
    the potential for unexpected inhalation of or
    contact with hazardous levels of any chemicals

28
PPE Care and Inspection
  • The user must take all steps to ensure that the
    protective ensemble performs as expected
  • All PPE and respiratory equipment must be
    inspected on a routine basis
  • Records must be kept of all inspection procedures

29
Summary
  • Personal protective equipment is essential in
    emergency response. The type of PPE used depends
    on the specific incident. Typical PPE consists of
    respiratory equipment and either structural
    fire-fighting, high-temperature, or
    chemical-protective clothing.
  • Structural fire-fighting clothing provides very
    limited protection against hazardous materials.

(1 of 3)
30
Summary
  • Chemical-protective clothing provides protection
    against hazardous materials. No one type of CPC
    protects against all hazards.
  • Positive-pressure SCBA is often used at incidents
    and has both advantages and disadvantages.

(2 of 3)
31
Summary
  • Level D ensembles are typical work uniforms,
    street clothes, or coveralls and are only
    appropriate for nuisance contamination.
  • PPE care and inspection is an important component
    in ensuring that PPE is properly maintained and
    safe for the user.

(3 of 3)
32
Homework
  • 1. Which of the following provides the best
    protection against hazardous materials?
  • A. Chemical-protective clothing B.
    Structural fire-fighting protective clothing
  • C. High-temperature protective clothing D. Level
    D complete ensembles
  • 2. Which of the following is a limitation of
    structural fire-fighting protective clothing?
  • A. It is lightweight and susceptible to tearing.
  • B. It is neither corrosive-resistant nor
    vapor-tight.
  • C. It cannot be obtained in exact sizes.
  • D. It is not appropriate for most emergency
    responses.
  • 3. When can structural fire-fighting protective
    clothing be used at hazardous materials
    incidents?
  • A. When the hazardous material is not known
  • B. When there is not a chance of fire at the
    incident
  • C. When no other protective clothing is readily
    available
  • D. When contact with splashes of extremely
    hazardous materials is unlikely
  • 4. Which of the following occurs when the
    characteristics of the material in use are
    altered through contact with chemical substances?
  • A. Degradation B. Absorption C.
    Penetration D. Permeation

33
Homework
  • 5. Which of the following is a selection
    criterion for determining appropriate
    chemical-protective clothing?
  • A. User comfort B. Color C. Specific
    chemical D. General appearance
  • 6. Which of the following statements about
    positive-pressure SCBA air pressure inside the
    facepiece is true?
  • A. It is slightly lower than normal atmospheric
    pressure outside.
  • B. It is slightly higher than normal atmospheric
    pressure outside.
  • C. It is the same as normal atmospheric pressure
    outside.
  • D. It may be lower or higher than normal
    atmospheric pressure outside.
  • 7. When can Level D ensembles be used?
  • A. When no atmospheric hazards exist
  • B. When decontamination facilities are nearby
  • C. When other protective clothing is not readily
    available
  • D. When the wearer has worked around chemicals
    before

34
Homework
  • 8. Which of the following is an advantage of
    SCBA-type respiratory protection?
  • A. Maneuverability B. Limited
    vision
  • C. Limited air-supply duration D. Weight of
    the unit
  • 9. Which of the following statements about PPE
    inspection is true?
  • A. Routine inspections do not require record
    keeping.
  • B. Inspections should be performed as personnel
    have time.
  • C. Records must be kept of all inspection
    procedures.
  • D. Inspection is not necessary if the same
    individual uses the same PPE every time.
  • 10. Protective clothing labeled disposable can
    be used how many times?
  • A. One B. Two C. Three D. Until it
    appears worn

35
Awareness-Level Lesson 4 Presentation
  • Hazardous Materials for First Responders, 3rd
    Ed.
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